Should doctors aim to make patients happy?

In the 1960s, wellbeing was a rebel child, adopted by tie dye and ripped jeans-wearing devotees of the alternative health and lifestyle movement.

Fast forward to today, wellbeing has gone mainstream. Its supporters are just as likely to be wearing a suit and tie.

Some even walk the corridors of power, such as Professor Richard Layard from the London School of Economics, who sits in the ermine-clad confines of the UK's House of Lords.

It was in his landmark 2006 book,